De Bongé

Patents for which De Bongé was the patent agent

• Patent FR-1907-378188 (Inventors: Giovanni Antonio Salvatico, English title: Pneumatic propeller for air and sea navigation)
• Patent FR-1908-389704 (Inventors: Max Schneider, English title: aerostat with framework (Coil? under-wire?))
• Patent FR-1908-393651 (Inventors: Adolf Thierfelder, English title: aerostat)
• Patent FR-1909-397466 (Inventors: Oskar Fehr, English title: Elastic band for luxury cars, transport and others)
• Patent FR-1909-399926.11116 (Inventors: Theodor Zorn, English title: Dirigible, Supplementary to patent: Patent FR-1909-399926)
• Patent FR-1909-399926 (Inventors: Theodor Zorn, English title: Dirigible)
• Patent FR-1909-401272 (Inventors: Heinrich Mack, English title: Propeller for airships, Supplementary to patent: Patent AT-1909-48421)
• Patent FR-1909-401488 (Inventors: Herrmann Storrer, English title: Apparatus for measuring differences in gas pressure)
• Patent FR-1910-410487 (Inventors: George Percy Bragg Smith, English title: Improvements to aeroplanes and flying machines)
• Patent FR-1910-417989.13504 (Inventors: Édouard-Jean Bigourdan, English title: Concentric biplane with contrary movements, actually a helicopter, featuring two counter-rotating blades, or sets of blades, Supplementary to patent: Patent FR-1910-417989)
• Patent FR-1910-413267 (Inventors: Philipp Doerhoefer, English title: Airship with keel, Supplementary to patent: DE 1910-01-01)
• Patent FR-1911-420209 (Inventors: Paul Haves, English title: Aeroplane)
• Patent FR-1910-420463 (Inventors: Hans Lohmann, English title: Device for keeping airplanes in the balanced position, that is, for the automatic maintainance of equilibrium by way of the pendulum, Supplementary to patent: Patent DE-1909-05-03 Hans Lohmann)
• Patent FR-1910-420550 (Inventors: Alexis Beurrier, English title: Concentric circular wings with upset movements, Supplementary to patent: Patent BE-1909-219377)
• Patent FR-1910-422155 (Inventors: Léon Deprez, English title: Airship of two balloons, with minimum and selectively focused rigidity)
• Patent FR-1911-423766 (Inventors: Walter Charles Pitter, English title: Improvements to the construction of propellers)
• Patent FR-1910-424513 (Inventors: Albert Lebrun, English title: Internal combustion engine)
• Patent FR-1911-417989.14395 (Inventors: Édouard-Jean Bigourdan, English title: Concentric biplane with contrary movements, actually a helicopter, featuring two counter-rotating blades, or sets of blades, Supplementary to patent: Patent FR-1910-417989)
• Patent FR-1911-423792.14664 (Inventors: André-Julien Mahoudeau, English title: Free center propeller, Supplementary to patent: Patent FR-1910-423792)
• Patent FR-1911-425176 (Inventors: Heinrich Dittmar, English title: Warp for balloons)
• Patent FR-1911-432760 (Inventors: Heinrich Hildebrand, English title: Improvements in propellers)
• Patent FR-1912-433439 (Inventors: Anton Kertész, English title: Stabilizer for flying machine)
• Patent FR-1911-434015 (Inventors: Jakob Haw • Arthur Sauer, English title: Underground shelter for aerostats)
• Patent FR-1911-435378 (Inventors: Herman Decortis, English title: Automatic stabilizer for all airplane systems)
• Patent FR-1912-446800 (Inventors: Carl Franz Hubert Hertel • Carl Wilhelm Paul, English title: Airplane kite with gyroscopic stabilizer)
• Patent FR-1912-447201 (Inventors: Heinrich Dittmar, English title: Warp for balloons, Supplementary to patent: Patent DE-1911-08-14 Heinrich Dittmar)
• Patent FR-1912-449486 (Inventors: Édouard-Jean Bigourdan • Alexis Beurrier, English title: Aerial vehicle)
• Patent FR-1912-450854 (Inventors: Joseph de Coster, English title: Lighting of automobiles, motorcycles, bicycles, airplanes, boats, dirigibles, etc.)
• Patent FR-1913-461454 (English title: Propeller-powered aerial vehicle, Supplementary to patent: Patent DE-1913-290120, Applicant firm: Daimler-Motoren-Gesellschaft)
• Patent FR-1914-461454.19200 (English title: aerial vehicle moved by a propeller, Supplementary to patent: Patent FR-1913-461454 • Patent DE-1913-293131, Applicant firm: Daimler Motoren-Gesellschaft)
• Patent FR-1914-469884 (Inventors: Friedrich Andersen, English title: Flying machine)
• Patent FR-1914-471926 (Inventors: Arno Boener, English title: Balloon system, Improvements in airship inflation and structure)